What was found in ZIP 77553
The level at this ZIP's main supplier, the highest level anywhere in it, the EPA limit for each, and where the figure comes from.
| Contaminant | Level vs EPA limit | Suppliers | Source |
|---|---|---|---|
| Nitrate-Nitrite | 1290 µg/L 13% of the EPA limit 10000 µg/L Highest in the ZIP: GALVESTON COUNTY WCID 8 · 7,065 people · 2015 | 1/2 | SYR4 |
| Nitrate | 1274 µg/L 13% of the EPA limit 10000 µg/L Highest in the ZIP: GALVESTON COUNTY WCID 8 · 7,065 people · 2019 | 1/2 | SYR4 |
| Fluoride | 630 µg/L 16% of the EPA limit 4000 µg/L Highest in the ZIP: GALVESTON COUNTY WCID 8 · 7,065 people · 2018 | 1/2 | SYR4 |
| Copper | 413.6 µg/L 32% of the EPA limit 1300 µg/L Main supplier: CITY OF GALVESTON · 52,326 people · 2019 | 2/2 | SYR4 |
| Barium | 105 µg/L 5.3% of the EPA limit 2000 µg/L Highest in the ZIP: GALVESTON COUNTY WCID 8 · 7,065 people · 2018 | 1/2 | SYR4 |
| TTHM | 72.6 µg/L 91% of the EPA limit 80 µg/L Main supplier: CITY OF GALVESTON · 52,326 people · 2019
Highest in the ZIP: 81.63 µg/L — GALVESTON COUNTY WCID 8 · 7,065 people · 2019 | 2/2 | SYR4 |
| Total Haloacetic Acids (HAA5) | 24 µg/L 40% of the EPA limit 60 µg/L Main supplier: CITY OF GALVESTON · 52,326 people · 2019
Highest in the ZIP: 33.94 µg/L — GALVESTON COUNTY WCID 8 · 7,065 people · 2019 | 2/2 | SYR4 |
| Dibromochloromethane | 28.725 µg/L No EPA limit set Main supplier: CITY OF GALVESTON · 52,326 people · 2019
Highest in the ZIP: 31.78 µg/L — GALVESTON COUNTY WCID 8 · 7,065 people · 2019 | 2/2 | SYR4 |
| Bromodichloromethane | 24.3 µg/L No EPA limit set Main supplier: CITY OF GALVESTON · 52,326 people · 2019
Highest in the ZIP: 26.03 µg/L — GALVESTON COUNTY WCID 8 · 7,065 people · 2019 | 2/2 | SYR4 |
| Chloroform | 20 µg/L No EPA limit set Main supplier: CITY OF GALVESTON · 52,326 people · 2019
Highest in the ZIP: 22.65 µg/L — GALVESTON COUNTY WCID 8 · 7,065 people · 2019 | 2/2 | SYR4 |
| Bromoform | 21.575 µg/L No EPA limit set Main supplier: CITY OF GALVESTON · 52,326 people · 2019 | 2/2 | SYR4 |
| Dichloroacetic Acid | 11.42 µg/L No EPA limit set Main supplier: CITY OF GALVESTON · 52,326 people · 2019
Highest in the ZIP: 19.63 µg/L — GALVESTON COUNTY WCID 8 · 7,065 people · 2019 | 2/2 | SYR4 |
| Lithium | 18.1 µg/L No EPA limit set Main supplier: CITY OF GALVESTON · 52,326 people · 2025 | 2/2 | UCMR-5 |
| Lead | 10.0205 µg/L 67% of the EPA limit 15 µg/L Main supplier: CITY OF GALVESTON · 52,326 people · 2019 | 2/2 | SYR4 |
| Monobromoacetic Acid | 8.4 µg/L No EPA limit set Main supplier: CITY OF GALVESTON · 52,326 people · 2019
Highest in the ZIP: 9.955 µg/L — GALVESTON COUNTY WCID 8 · 7,065 people · 2019 | 2/2 | SYR4 |
| Dibromoacetic Acid | 9.86 µg/L No EPA limit set Main supplier: CITY OF GALVESTON · 52,326 people · 2019 | 2/2 | SYR4 |
| Monochloroacetic Acid | 9.58 µg/L No EPA limit set Main supplier: CITY OF GALVESTON · 52,326 people · 2019 | 2/2 | SYR4 |
| Trichloroacetic Acid | 5.965 µg/L No EPA limit set Main supplier: CITY OF GALVESTON · 52,326 people · 2019
Highest in the ZIP: 7.7 µg/L — GALVESTON COUNTY WCID 8 · 7,065 people · 2019 | 2/2 | SYR4 |
| Gross Beta Particle Activity | 5.54 pCi/L No EPA limit set Highest in the ZIP: GALVESTON COUNTY WCID 8 · 7,065 people · 2018 | 1/2 | SYR4 |
| Xylenes, Total | 1.795 µg/L 0% of the EPA limit 10000 µg/L Highest in the ZIP: GALVESTON COUNTY WCID 8 · 7,065 people · 2019 | 1/2 | SYR4 |
| Atrazine | 0.2215 µg/L 7.4% of the EPA limit 3 µg/L Highest in the ZIP: GALVESTON COUNTY WCID 8 · 7,065 people · 2019 | 1/2 | SYR4 |
| Simazine | 0.2080 µg/L 5.2% of the EPA limit 4 µg/L Highest in the ZIP: GALVESTON COUNTY WCID 8 · 7,065 people · 2019 | 1/2 | SYR4 |
| Pfpea | 0.0886 µg/L No EPA limit set Main supplier: CITY OF GALVESTON · 52,326 people · 2025
Highest in the ZIP: 0.1560 µg/L — GALVESTON COUNTY WCID 8 · 7,065 people · 2024 | 2/2 | UCMR-5 |
| Pfba | 0.0359 µg/L No EPA limit set Main supplier: CITY OF GALVESTON · 52,326 people · 2025 | 2/2 | UCMR-5 |
| Pfhxa | 0.0044 µg/L No EPA limit set Main supplier: CITY OF GALVESTON · 52,326 people · 2025
Highest in the ZIP: 0.0062 µg/L — GALVESTON COUNTY WCID 8 · 7,065 people · 2024 | 2/2 | UCMR-5 |
| 6:2 Fts | 0.0060 µg/L No EPA limit set Highest in the ZIP: GALVESTON COUNTY WCID 8 · 7,065 people · 2024 | 1/2 | UCMR-5 |
| PFBS | 0.0041 µg/L No EPA limit set Main supplier: CITY OF GALVESTON · 52,326 people · 2025
Highest in the ZIP: 0.0045 µg/L — GALVESTON COUNTY WCID 8 · 7,065 people · 2024 | 2/2 | UCMR-5 |
| Lead | 0.0031 mg/L 21% of the EPA limit 0.0150 mg/L Main supplier: CITY OF GALVESTON · 52,326 people · 2026 | 2/2 | LCR |
Each bar shows the measured level as a share of the EPA limit: green is
well under, amber is close to it, red is over. For lead and copper the
limit applies to exactly the 90th-percentile figure shown, so red there
means a real exceedance. For everything else the limit applies to a
running annual average while the figure is the 95th percentile of the
system's samples — over 100% is worth reading, but is not by itself a
violation.
Formal violations are listed separately.
Water suppliers serving ZIP 77553
| Supplier | State | Population served |
|---|---|---|
| CITY OF GALVESTON | TX | 52,326 |
| GALVESTON COUNTY WCID 8 | TX | 7,065 |
Frequently asked questions about ZIP 77553 tap water
Is the tap water in ZIP 77553 safe to drink?
EPA testing detected 28 contaminants across the water suppliers serving ZIP 77553. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and your utility's annual Consumer Confidence Report for the official status.
Which water suppliers serve ZIP 77553?
2 public water suppliers report EPA drinking-water monitoring for ZIP 77553. Each is listed above with its population served.
What contaminants are in ZIP 77553's water?
EPA monitoring detected Nitrate-Nitrite, Nitrate, Fluoride, Copper, Barium, and others across this ZIP's suppliers. The full list with levels and sources is above.